public double h(double v) throws Exception {
double v1 = find(o1, v);
double v2 = find(o2, v);
return Math.pow(v1, v2);
}
public double h(double v) throws Exception {
double v1 = h1.h(v);
double v2 = h2.h(v);
return Math.pow(v1, v2);
}